// 
// CommandManager.cs
//  
// Author:
//       Tomas Vondracek <tomas.vondracek@gmail.com>
// 
// Copyright (c) 2010 Tomas Vondracek
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

using System;
using Common.Interfaces;
using System.Collections.Generic;
using System.Windows.Forms;

namespace Common.Gui.GuiWinFormsLib
{
	public class CommandManager
	{
		Dictionary<object, ToolStripItem> registeredControls;
		
		private static CommandManager instance;
		
		public static CommandManager GetInstance()
		{
			if (instance == null)
				instance = new CommandManager();
			
			return instance;
		}
		
		private CommandManager ()
		{
			this.registeredControls = new Dictionary<object, ToolStripItem>();
		}
		
		public void RegisterCommandHandler(CommandHandler handler, ToolStripItem ctrl)
		{
			if (this.registeredControls.ContainsKey(handler.Id))
				throw new InvalidOperationException("Non unique id provided for conmmand handler: " + handler.Id);
			
			this.registeredControls.Add(handler.Id, ctrl);
			Logging.Logger.AddInfo("CommandManager: registered command handler " + handler.Id);
		}
		
		internal void UpdateControlItem(object id, CommandInfo cmdInfo)
		{
			if (id == null)
				throw new NullReferenceException("Id for command handler is null!");
			if (!this.registeredControls.ContainsKey(id))
				throw new IndexOutOfRangeException(id.ToString() + ": no such command handler is registered!");
			
			var control = this.registeredControls[id];
			control.Text = cmdInfo.Text;
			control.Enabled = cmdInfo.IsEnabled;
			control.Visible = cmdInfo.IsVisible;
			// TODO Tooltip text;
		}
	}
}

